Gray Willows Wetland Mitigation Bank
The Gray Willows Wetland Mitigation Bank involved the design, permitting, construction, and ecological management of 95 acres of open space owned by Campton Township. This multi-year project aimed to reestablish, rehabilitate, and restore environments to their ideal state. Work began with pre-seeding weed control, tile removal, and minor grading before the installation of 150,000 plant plugs and seeding. This effort added several new plant communities and revised many of the species lists and quantities originally proposed, bringing added benefit to the ecosystem. Once wetland hydrology and vegetation performance standards were achieved, our team began annual maintenance to ensure continued success through the savanna, prairie, and wetland habitat.
This project won a 2025 ACEC IL Engineering Excellence Special Achievement Award.




Project Location
Campton Hills, Illinois
Client
Campton Township
